Atmospheric pressure it is the weight (force) of the air exerted per unit area on the earth’s surface. It is mathematically expressed as:Pressure = Force/Area The weight of air is the vertical column exerted from the upper limit of the atmosphere to the earth’s surface which is approximately 1.034kg/cm3 over the sea level. It is …
The following are Factors Influencing Wind Transportation and Deposition: Wind velocity: when speed decreases strength also decreases and its ability to transport so wind starts to deposit materials. Wind direction- Winds blowing from different directions converge and cause the load to collide causing some of it to be deposited. Nature of desert surface: Wind transportation …
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The following are Soil Conservation methods Terracing: This is the digging of step-like trenches across a hill, which helps to trap the moving soil hence preventing soil erosion. Crop rotation: This is the planting of different crops on the same piece of land. This helps to control monoculture and its effects. Afforestation and re-afforestation: here, …
VULCANICITY is a process through which molten rocks (magma) are intruded within the earth’s crust or extruded onto the earth’s surface. Vulcanicity is aided by the process of faulting which forms cracks in the earth’s crust through which magma escapes. When magma is intruded within the earth’s crust, it cools down and solidifies to form …
Vent eruption involves magma coming out through one vent or pipe and pile up while fissure eruption involves magma coming out through many cracks of fissures and spread over a wide area
The following are steps on how the ox-bow lake is formed: a river stars to meander on a flood plain lateral erosion occurs on the outer side of the bend while deposition takes place on the inner bank lateral erosion leads in the reduction of the neck of land between adjacent bends the neck of …
The following are effects of soil erosion to human activities Soil erosion may destroy structures for example buildings, bridges, roads as it weakens their foundation erodes alluvial deposits on the river beds making the river channel shallower resulting in frequent flooding sand eroded from steep slopes is deposited on the river beds and can be …